問題詳情

16.Which device is used to control the speed of the prime mover of a-c generator in order to ensurethe frequency of a electrical system is not influenced by various load?
(A)Governor
(B)Solid-state power converter
(C)Uninterruptible power supply
(D)Variable injection timing system

參考答案

答案:A
難度:適中0.628571
統計:A(22),B(8),C(3),D(1),E(0)

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